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Note 7 - Rental Equipment (Tables)

6 Months Ended

Mar. 31, 2025

Notes Tables

Property, Plant, and Equipment, Lessor Asset under Lease [Table Text Block]

		March 31, 2025				September 30, 2024
Rental equipment, primarily wireless recording equipment		$	49,108			$	63,111
Accumulated depreciation			(37,463	)			(48,925	)
		$	11,645			$	14,186

X

- Definition

Tabular disclosure of lessor's underlying asset for which right to use has been conveyed to lessee under lease.

+ References

No definition available.

+ Details

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Namespace Prefix:	geos_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_TableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration